Abstract: Disclosed are power systems for use on various types of power machines, including an engine and a hydraulic pump assembly positioned in-line with and powered by an engine output shaft. A driving member powered by the engine has a central cavity through which access to the engine output shaft is provided to the hydraulic pump. A driven member is in communication with the driving member to receive power. The driven member is coupleable to a gearbox drive shaft that drives a gearbox, the gearbox having an output capable of driving a power take-off shaft.

Abstract: Disclosed are power systems for use on various types of power machines, including an engine and a hydraulic pump assembly positioned in-line with and powered by an engine output shaft. A driving member powered by the engine has a central cavity through which access to the engine output shaft is provided to the hydraulic pump. A driven member is in communication with the driving member to receive power. The driven member is coupleable to a gearbox drive shaft that drives a gearbox, the gearbox having an output capable of driving a power take-off shaft.

Abstract: An attachment assembly for use with a vehicle includes an arm support assembly and an attachment interface assembly pivotally mounted to the arm support assembly. The attachment interface assembly includes an interface plate configured to accept a work attachment. The attachment interface assembly and interface plate pivots under the influence of respective lift and tilt actuators. The attachment interface assembly is removable from the arm support assembly, and the actuators are pivotable into stowed positions, upon removing a pin that attaches the lift actuator piston rod to the attachment interface assembly, a pin that attaches the tilt actuator piston rod to the interface plate, and a pin that pivotally attaches the attachment interface assembly to the arm support assembly. The pins may be used to secure the actuators in the stowed positions, and an additional clip may be used to secure one or both of the actuators in the stowed position.

Abstract: A piston is disclosed that includes a longitudinal passage disposed between outlets on the opposing faces of the piston, and a radial passage extending from a node with the longitudinal passage to an outlet on the annular wall between opposing piston seals. Check valves are disposed in the longitudinal passage between the node and each of the piston faces, such that each of the check valves enables fluid flow from its inlet to the outlet on the annular wall, and block fluid flow from the outlet on the annular wall to the inlet. In the event of pistons in a fluid system becoming out of phase with each other, fluid may be admitted through the inlet of the longitudinal passage and the respective check valve and out a side wall outlet, thereby bypassing the piston to exit via the respective end port, until another, out-of-phase piston or pistons in the system also reach full extension or retraction, automatically returning all pistons in the system to be in phase with each other.